Title:
METHOD OF MEASURING CONCENTRATION OF STABLE FREE- RADICAL COMPOUND
Document Type and Number:
Japanese Patent JP3614352
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method by which the concentration of a stable free- radical compound can be measured quickly with high accuracy, in a process of handling a radical polymerizable compound to which the free-radical compound has been added.
SOLUTION: In this method, the concentration of the stable free-radical compound is measured from the absorption intensity of electronic spin resonance so as to quickly control the process of handling the radical polymerizable compound with high accuracy. The stable free-radical compound is composed of one of 2,2,6,6-tetratmethylpiperidine-1-oxyls.
Inventors:
Norihiko Onishi
Hiroshi Kurumato
Zenji Yamaguchi
Hiroshi Kurumato
Zenji Yamaguchi
Application Number:
JP2000267004A
Publication Date:
January 26, 2005
Filing Date:
September 04, 2000
Export Citation:
Assignee:
Hakuto Co., Ltd.
International Classes:
C08F2/40; C08F10/00; C08F12/08; C08F18/08; C08F20/00; C08F22/02; C08F36/04; G01N24/00; G01N24/10; G01R33/60; (IPC1-7): G01N24/10; C08F2/40
Domestic Patent References:
| JP7239311A | ||||
| JP3058970A | ||||
| JP10001505A | ||||
| JP4026639B2 | ||||
| JP8313463A | ||||
| JP5072310A | ||||
| JP11116497A | ||||
| JP62126337A | ||||
| JP2801008B2 |
Other References:
Dorthe Kristensen and Leif H. Skibsted,Comparison of Three Methods Based on Electron Spin Resonance Spectrometry for Evaluation of Oxidativ,J.Agric.Food Chem.,1999年,Vol.47, No.8,pp.3099-3104
Attorney, Agent or Firm:
Masahiro Tanaka